Morton, T. E., Kant, C., & Preece, P. (1999). Forecasting software manual. South-Western College Pub.
Dyfyniad Arddull ChicagoMorton, Thomas E., Carolyn Kant, and Pablo Preece. Forecasting Software Manual. Cincinnati, Ohio: South-Western College Pub, 1999.
Dyfyniad MLAMorton, Thomas E., et al. Forecasting Software Manual. South-Western College Pub, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.